== sanity test 413k: QoS mkdir exclude prefixes ========== 11:28:24 (1789140504)
lmv.lustre-clilmv-ffff8d491324e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d491324e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d491324e000.qos_exclude_prefixes=_temporary